Principles of morality (1a2ae. 18-21) /
Thomas,Aquinas, Saint,1225?-1274.
Gilby, Thomas,1902-1975.
[Cambridge] : Blackfriars in conjunction with Eyre & Spottiswoode and McGraw-Hill, New York,
c1966.
Latin and English facing pages.
Appendix: Guilt.
Includes bibliographical footnotes and index.
Christian ethics